At the end of 2014, then esp8266 has been just arrived, i decided to make universal IoT device with speech recognition, speaker, screen and set of another useful peripheralsIt's core is ESP8266. Unfortunately esp8266 has few pins and ports, so it's need an companion MCU for peripherals handling, and i got STM32F105RBT8 for this purposes.

This is really good! The PCB design looks really neat.Do check out the upcoming ESP32 chip and modules. That chip alone can do all that this entire board can (and more!). Perhaps you can come up with more cool stuff based on ESP32 when it is launched!Thank you for your interest in ESP8266.

You right, i am thinking about new board design with esp32. Of course, i heard about esp32 and it's great capabilities. I am watching to news about esp32 from first announcement, but unfortunately esp32 modules still is not available for purchase.

Well, we have some for internal use at the moment. ESP32 modules are still in the process of production and development, they will be released soon after finalizing the demo board and updating the modules accordingly. They will have debugger support as well. I'm sure it will be in the markets very soon.

Hi..i am a new user here. Thanks for sharing your work here. I also want to build the same. Is it possible without STM32? Actually i don't have the knowledge about STM32. Or suggest me from where i could learn about STM32?

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Espressif Systems is a fabless semiconductor company providing cutting-edge low power WiFi SoCs and wireless solutions for wireless communications and Internet of Things applications. We are the manufacturer of ESP8266EX.